import axios from 'axios'
// import { MessageBox, Message } from 'element-ui'
import { Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import router from '@/router'
const Sm4js = require('sm4js')

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 20000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (store.getters.security) {
      if (typeof config.data !== 'undefined') {
        var data = config.data
        data = JSON.stringify(data)
        var sm4Config = {
          key: store.getters.sm4Key,
          mode: 'ecb',
          cipherType: 'base64'
        }
        var sm4 = new Sm4js(sm4Config)
        var body = sm4.encrypt(data)
        config.data = { 'body': body }
      }
    }
    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    const url = response.config.url
    if (url.includes('/app/authentication')) {
      return response
    }

    // if the custom code is not 20000, it is judged as an error.
    // if (res.code !== 20000) {
    //   Message({
    //     message: res.message || 'Error',
    //     type: 'error',
    //     duration: 5 * 1000
    //   })

    //   // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
    //   if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
    //     // to re-login
    //     MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
    //       confirmButtonText: 'Re-Login',
    //       cancelButtonText: 'Cancel',
    //       type: 'warning'
    //     }).then(() => {
    //       store.dispatch('user/resetToken').then(() => {
    //         location.reload()
    //       })
    //     })
    //   }
    //   return Promise.reject(new Error(res.message || 'Error'))
    // } else {
    //   return res
    // }
    const body = res.body
    if (typeof body === 'undefined') {
      return res
    }
    if (store.getters.security) {
      var sm4Config = {
        key: store.getters.sm4Key,
        mode: 'ecb',
        cipherType: 'base64'
      }
      const sm4 = new Sm4js(sm4Config)
      let s = sm4.decrypt(body)
      s = s.replace(/\\n/g, '\\n')
        .replace(/\\'/g, '\\"')
        .replace(/\\"/g, '\\"')
        .replace(/\\&/g, '\\&')
        .replace(/\\r/g, '\\r')
        .replace(/\\t/g, '\\t')
        .replace(/\\b/g, '\\b')
        .replace(/\\f/g, '\\f')
      // remove non-printable and other non-valid JSON chars
      s = s.replace(/[\u0000-\u0019]+/g, '')
      var data = JSON.parse(s)
      return data
    }
    return res
  },
  async error => {
    console.error(error)
    if (error.response.status === 401) {
      await store.dispatch('user/logout')
      console.log(router)
      router.push({
        path: `/login?redirect=${router.currentRoute.fullPath}`
      })
    }
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
